spencercdixon / black-jack-challenge Goto Github PK

When playing cards at the casino accuracy is of extreme importance. One number off could be the matter of thousands or millions of dollars lost. For this exercise we are going to write unit tests for the method that calculates the total of a hand in blackjack. Writing tests allow you to make sure the behavior you expect to happen is actually happening. They also give you direction in the design process of your code.

The testing framework we will be using for this exercise is RSpec. RSpec is a DSL (Domain Specific Language) that makes writing tests easier and more semantic. It is heavily used in the Rails community.

The RSpec documentation is a great place to start learning what methods are available to you when writing tests. Look through rspec-core and rspec-expectations. Avoid the rspec-mocks and rspec-rails sections for now.

There is already a Deck class set up with some tests. Take a few minutes to read through those tests to figure out what is going on. Once you have a better idea of whats happening see if you can start writing the tests for the #calculate_hand method in the Hand class. Finally, implement the actual method in order to make the tests pass.

To run the tests you will type: rspec spec into your terminal.

Note: Make sure to run bundle install to get RSpec installed

Extra Credit: For an extra challenge make it so that the #calculate_hand method takes into account Aces values of either 1 or 11.